The northwestern part of India witnessed the military campaign of Alexander the Great of Macedon, who in 327 bce, in pursuing his campaign to the eastern extremities of the Achaemenian Empire, entered Gandhara. He campaigned successfully across the Punjab as far as the Beas River, where his troops refused to continue fighting. The vast army of the Nandas is referred to in Greek sources, and some historians have suggested that Alexander’s Macedonian and Greek soldiers may have mutinied out of fear of this army. The campaign of Alexander made no impression on the Indian mind, for there are no references to it in Indian sources. A significant outcome of his campaign was that some of his Greek companions—such as Onesicritus, Aristobulus, and his admiral, Nearchus—recorded their impressions of India. Later Greek and Roman authors such as Strabo and Arrian, as well as Pliny and Plutarch, incorporated much of this material into their writings. However, some of the accounts are fanciful and make for better fiction than history. Alexander established a number of Greek settlements, which provided an impetus for the development of trade and communication with western Asia. Most valuable to historians was a reference to Alexander’s meeting the young prince Sandrocottos, a name identified in the 18th century as Chandragupta, which provides a chronological landmark in early Indian history.

The accession of Chandragupta Maurya (reigned c. 321–297 bce) is significant in Indian history because it inaugurated what was to become the first pan-Indian empire. The Mauryan dynasty was to rule almost the entire subcontinent (except the area south of present-day Karnataka), as well as substantial parts of present-day Afghanistan.

Chandragupta overthrew the Nanda power in Magadha and then campaigned in central and northern India. Greek sources report that he engaged in a conflict in 305 bce in the trans-Indus region with Seleucus I Nicator, one of Alexander’s generals, who, following the death of Alexander, had founded the Seleucid dynasty in Iran. The result was a treaty by which Seleucus ceded the trans-Indus provinces to the Maurya and the latter presented him with 500 elephants. A marriage alliance is mentioned, but no details are recorded.

The treaty ushered in an era of friendly relations between the Mauryas and the Seleucids, with exchanges of envoys. One among them, the Greek historian Megasthenes, left his observations in the form of a book, the Indica. Although the original has been lost, extensive quotations from it survive in the works of the later Greek writers Strabo, Diodorus, and Arrian. A major treatise on political economy in Sanskrit is the Artha-shastra of Kautilya (or Canakya, as he is sometimes called). Kautilya, it is believed, was prime minister to Chandragupta, although this view has been contested. In describing an ideal government, Kautilya indicates contemporary assumptions of political and economic theory, and the description of the functioning of government occasionally tallies with present-day knowledge of actual conditions derived from other sources. The date of origin of the Artha-shastra remains problematic, with suggested dates ranging from the 4th century bce to the 3rd century ce. Most authorities agree that the kernel of the book was originally written during the early Mauryan period but that much of the existing text is post-Mauryan.

According to Jain sources, Chandragupta became a Jain toward the end of his reign. He abdicated in favour of his son Bindusara, became an ascetic, and traveled with a group of Jain monks to southern India, where he died, in the orthodox Jain manner, by deliberate slow starvation.

The second Mauryan emperor was Bindusara, who came to the throne about 297 bce. Greek sources refer to him as Amitrochates, the Greek for the Sanskrit amitraghata, “destroyer of foes.” This name perhaps reflects a successful campaign in the Deccan, Chandragupta having already conquered northern India. Bindusara’s campaign stopped in the vicinity of Karnataka, probably because the territories of the extreme south, such as those of the Colas, Pandyas, and Ceras, were well-disposed in their relations toward the Mauryas.

Click anywhere inside the article to add text or insert superscripts, subscripts, and special characters.
You can also highlight a section and use the tools in this bar to modify existing content:

Add links to related Britannica articles!
You can double-click any word or highlight a word or phrase in the text below and then select an article from the search box.
Or, simply highlight a word or phrase in the article, then enter the article name or term you'd like to link to in the search box below, and select from the list of results.

Note: we do not allow links to external resources in editor.
Please click the Web sites link for this article to add citations for
external Web sites.